Merge remote-tracking branch 'qatar/master'

* qatar/master:
  opt: Add av_opt_set_bin()
  avconv: Display the error returned by avformat_write_header
  rtpenc_chain: Return an error code instead of just a plain pointer
  rtpenc_chain: Free the URLContext on failure
  rtpenc: Expose the ssrc as an avoption
  avprobe: display the codec profile in show_stream()
  avprobe: fix function prototype
  cosmetics: Fix indentation
  avprobe: changelog entry
  avprobe: update documentation
  avprobe: provide JSON output
  avprobe: output proper INI format
  avprobe: improve formatting
  rtmp: fix url parsing
  fate: document TARGET_EXEC and its usage

Conflicts:
	doc/APIchanges
	doc/fate.texi
	doc/ffprobe.texi
	ffprobe.c
	libavformat/version.h
	libavutil/avutil.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 6 insertions, 2 deletions

diff --git a/ffmpeg.c b/ffmpeg.c
index fad21c0..d8396dc 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -3294,8 +3294,12 @@ static int transcode_init(void)
     for (i = 0; i < nb_output_files; i++) {
         oc = output_files[i]->ctx;
         oc->interrupt_callback = int_cb;
-        if (avformat_write_header(oc, &output_files[i]->opts) < 0) {
-            snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
+        if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
+            char errbuf[128];
+            const char *errbuf_ptr = errbuf;
+            if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
+                errbuf_ptr = strerror(AVUNERROR(ret));
+            snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
             ret = AVERROR(EINVAL);
             goto dump_format;
         }